Introduction-to-AngularJS-and-MVC-Architecture.pptx

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1. Introduction to AngularJS and MVC Architecture Seminar Presentation – CSE 375: Web Technologies Presented by: Amritha A, Department of CSE

2. What is AngularJS? Open-Source JS Framework Developed and maintained by Google. Dynamic & SPAs Ideal for building dynamic Single-Page Applications (SPAs). Extends HTML Uses custom directives and expressions to enhance HTML capabilities. Client-Side Operation Works directly within the user's web browser.

3. Key Advantages: Why Choose AngularJS? Two-Way Data Binding Automatic synchronisation between the Model and View, eliminating the need for manual DOM manipulation and reducing boilerplate code. Simplified Front-End Offers a structural framework that makes developing complex front-end applications quicker and more manageable. Enhanced User Experience Creates seamless, faster loading applications typical of SPAs, greatly improving user interaction. Robust Community Support Benefit from extensive documentation, community modules, and continuous updates from Google and open-source contributors.

4. Foundation of AngularJS: Key Directives 01 ng-app Initialises and defines the root element of the AngularJS application. 02 ng-model Binds input fields (like textboxes) to application data variables in the model. 03 ng-bind Displays the bound data value from the model into the HTML view elements. Example: Live Data Binding <div ng-app=""> <p>Name: <input type="text" ng-model="name"></p> <p>Hello, <span ng-bind="name"></span>!</p></div> As you type into the input box, the displayed greeting updates instantly, showcasing two-way binding.

5. Chapter 2: Understanding Application Structure The MVC Architecture Model (M) Manages the application's data, business logic, and rules. View (V) Presents data to the user through the UI (User Interface). Controller (C) Acts as an intermediary, handling user input and updating the Model and View.

6. MVC in Action: Data Flow A simple example detailing how user interaction flows through the Model-View-Controller structure. Controller → View Model → Controller Controller → Model User → Controller For instance, when a user requests a 'student list', the View relays this to the Controller. The Controller interacts with the Model (which fetches data from the database). The Model returns the data, and the Controller then passes it to the View for rendering in the browser.

7. Structural Benefits of MVC Architecture Easier Maintenance Separation of concerns (M, V, C) makes updating and debugging components simpler. Parallel Development Different developers can work on the Model, View, and Controller simultaneously. Enhanced Testing The components can be tested independently, leading to higher code quality. SEO-Friendly Better structure allows for easier indexing by search engines compared to some SPAs.

8. Considerations: Limitations of MVC Complexity for Small Apps The overhead and structured setup can be disproportionate for very small or simple applications. Initial Learning Curve Beginners may find the initial setup and understanding of the M-V-C interaction challenging. Increased Setup Time Requires more initial configuration and file structure planning compared to monolithic applications.

9. Summary and Conclusion AngularJS Simplifies building dynamic, data-driven Single-Page Applications (SPAs). MVC Architecture Provides a clear structure that improves code scalability, maintainability, and organization. Web Development Essential knowledge for modern, complex web application development in Web Technologies. Thank you for your attention. Any questions regarding AngularJS or MVC Architecture?